baber/WOPTO huggingface dataset:
Patent GB-1150401-A (GB)
Title: Safe Microbial Methane Oxidation
Inventor: HAMER GEOFFREY
IPC: C12P21/00
Filed: 1967-02-10
Abstract: 1,150,401. Micro-biological oxidation of methane. G. HAMER. Feb. 10, 1967 [June 13, 1966], No. 6538/67. Heading C6F. A process for the conversion of methane into assimilable complex organic products involves cultivating bacteria of the genus Methanomonas, particularly Methanomonas haga, in a liquid culture medium containing a nitrate, ammonia or an ammonium salt as a source of assimilable nitrogen and assimilable sources of other mineral salts, in the presence of methane as at least the major source of assimilable carbon, and oxygen in a concentration too low to form an explosive mixture with the methane. The products of growth are cells, intracellular products, particularly the protein and fat or lipid fractions of the cells, which are assimilable by animals and other organisms, carbon dioxide, water and acetic acid. The cultivation takes place in the presence of a gaseous diluent such as a mixture of nitrogen and carbon dioxide. Typically, the oxygen content is kept between 2 and 12% by volume based on the total gaseous mixture, the methane concentration is greater than the oxygen content, the carbon dioxide produced does not exceed 5% by volume and nitrogen, as diluent, occupies the remaining volume. The methane, oxygen &c. gas mixture is continuously circulated through the liquid culture medium, which is maintained at a pH of between 5 and 8, as by the dropwise addition of ammonia or sodium hydroxide, a temperature of between 10‹ and 50‹C., and a pressure in the range 1 to 40 atmospheres. In the description of a system of apparatus, mention is made of a batch fermenter, through which the gas mixture is continuously circulated, being protected against contamination by heated inlet and outlet gas filters. The culture medium should contain no cereal, oil seed, meat or fish meals, steep liquors, peptones or the malt, yeast or meat extracts normally encountered in fermentation broths, or growth factors such as biotin or calcium pantothenate.
Patent GB-1064555-A (GB)
Title: High-rise polyurethane foams
IPC: C08G18/18
Filed: 1966-02-15
Abstract: A "high rise" polyurethane foam mixture is prepared by the reaction of a methylene-linked polyphenyl polyisocyanate with a polyol of hydroxyl number 300-800, i.p.o. a catalyst, the overall ratio of isocyanate to hydroxyl groups being 1.2-1.45: 1. Preferably, the polyol has an average functionality of 3.5-6.0 and the polyisocyanate comprises 40-75 wt. per cent of diphenylmethane diisocyanate. Suitable polyol components are polyoxyalkylene adducts of water, glycols, dihydric phenols, aliphatic and cycloaliphatic polyols; dihydric phenols; adducts of ethylene, propylene or butylene oxides and polyamines, particularly aniline/formaldehyde polyamines; and polyester polyols, preferably from dicarboxylic acids and triols (or higher polyols).  Preferably, there is also used a cross-linking polyol, e.g. glycerol, hexanetriol, trimethylol propane, pentaerythritol, and oxyalkylated diamines or sugars. Catalysts may be certain metal compounds (listed), phosphines, or tertiary amines, e.g. triethylamine, triethylene diamine, tetraalkyl alkylenediamines, N-alkyl morpholines, tetramethyl guanidine, dialkylethanolamines. Preferably with alkylene oxide/polyamine adducts are used trialkylamines, with alkylene oxide/aliphatic polyol adducts, tetraalkyl guanidines. The blowing agent may be water and/or a hydrocarbon or halogenated hydrocarbon boiling below 110 DEG  C. There may also be added conventional dispersing agents, surfactants, cell stabilizers, e.g. polyoxyalkylene polysiloxanes, and flame retardants, e.g. halogenated organic phosphorus compounds, or phosphorus-containing polyols may be incorporated in the polyol mixture for this last purpose.  In examples, a propoxylated methyl glucoside or polyamine is mixed with diethyl N,N-bis-(hydroxyethyl)-aminomethane phosphonate and minor amounts of tetra-(2-hydroxypropyl) ethylene diamine or di-(2-hydroxypropyl) aniline, and, optionally, dimethylethanolamine or triethylamine and water, together with trichlorfluormethane and a polymethylene polyphenyl polyisocyanate, which may be in the form of a prepolymer, prepared by reaction with a little 3: 1-propylene oxide/triol adduct, and a silicone surfactant.
Patent GB-881082-A (GB)
Title: Washing machine
IPC: D06F34/08
Filed: 1958-01-11
Abstract: 881,082. Washing-machines. ATELIERS DE CONSTRUCTION E. D'HOOGE S.p.r.L. Jan. 11, 1958 [March 22, 1957], No. 6600/61. Divided out of 881,081. Class 138 (2). A washing machine comprises a drum rotatable on a horizontal axis inside a fixed tank, having a pipe connecting it to an adjoining machine of a group of washing machines, and having a drain conduit both controlled by an electro-pneumatic valve, a steam inlet controlled by an electromagnetic valve, a first water reservoir fitted on top of the machine connected thereto by a pipe controlled by an electropneumatic valve, a second reservoir mounted on top of the machine for the preparation of washing solutions connected thereto by a pipe controlled by an electro-pneumatic valve, inlet pipes for admitting washing agents into the second reservoir controlled by electro-pneumatic valves and a water inlet pipe opening into the second reservoir controlled by an electromagnetic valve. As shown, the machine comprises a tank 1, and a rotatable drum 2 supported on bearings 4 and 5. A large reservoir 36 above the machine is supplied with water by electro-pneumatic valve 53, while a second smaller reservoir 72, used to prepare solutions of washing agents, takes the form of a glass cylinder 73 with a top plate 75 through which washing agents are supplied via electropneumatic valves with cylinders 79, 80 and 81. A spray nozzle 110 for fresh water is supplied by pipe 111 via electromagnetic valve 112, 113. The level of prepared solutions in reservoir 72 is controlled by float valve 101. Prepared solutions are led into the machine via an electropneumatic valve 117 in pipe 116 which leads into pipe 37 and tank 1. Water is supplied to tank 1 from reservoir 36 by way of electropneumatic valve 38 and pipe 37, while the supply of steam for heating is via electromagnetic valve 128 and pipe 127. The tank is emptied by pump 14 which delivers to filter 17, chamber 19, and electro-pneumatic valve 20 which directs discharged solution to pipe 24 and the next machine of a group, or to pipe 23 and to waste. The operation of the machine and all the electromagnetic and electropneumatic valves are controlled by contact devices of electromagnets whose circuits are individually controlled by a corresponding cam. Specification 881,083 also is referred to.
Patent GB-940289-A (GB)
Title: Process for the manufacture of hydrogen fluoride
IPC: C01B7/19
Filed: 1962-02-20
Abstract: A process for manufacturing hydrogen fluoride comprises reacting fluorspar, which has previously been calcined at 425 DEG  to 705 DEG C., and sulphuric acid in at least the stoichiometric amount required to react completely with the fluorspar, at 150 DEG  to 315 DEG  C. The fluorspar may be calcined in a fluidized bed or column. Preferably the sulphuric acid used is of 99 to 100% concentration and is introduced into the reaction zone at 90 DEG  to 180 DEG  in an amount up to 20% in excess of the aforementioned stoichiometric amount.  The process may be effected in an externally heated rotaty kiln.
Patent GB-604759-A (GB)
Title: Improvements in or relating to television systems and receivers
IPC: H04N7/06
Filed: 1945-03-16
Abstract: 604,759. Television. PHILCO RADIO & TELEVISION CORPORATION. March 16, 1945, No. 6676. Convention date, May 30, 1944. [Class 40 (iii)] [Also in Group XL (c)] In a television transmission system the picture signals and vertical synchronising signals are transmitted as amplitude modulations of one carrier wave, and sound signals and horizontal synchronising signals are transmitted as frequency and amplitude modulations respectively of a second carrier wave. The arrangement obviates the difficulties introduced in a television system, when large amplitude synchronising pulses are used to overcome interference. The first carrier wave, Fig. 2a, is amplitude modulated by picture signals 17, 18, horizontal blanking signals 19 and vertical synchronising and blanking signals 24, 25. The second carrier wave, Fig. 2b, which is frequency modulated by the concomitant sound transmission, is amplitude modulated by the horizontal synchronising signals 43, which, as shown, are made to coincide with the leading edges of the blanking signals 19, but which, if desired, may be arranged to occur slightly before the blanking pulses, whereby, in either case, a saving in fly-back time may be effected. Moreover, since no pedestal is required for the synchronising signals, the pulses 19 may be omitted and the carrier reduced to zero during such intervals and reintroduced at the receiver. The receiver comprises a common frequency changer which converts the two carriers to different intermediate frequencies. The sound signals are separated from the synchronising signals, carried by the same intermediate frequency, by a limiter, or, alternatively, after discrimination, by an audio-frequency filter. To obtain the horizontal synchronising signals, the intermediate frequency signal is rectified by a diode detector circuit which is so designed that any small amplitude modulation, corresponding to the frequency modulation, is eliminated. Specifications 398,512, 514,643 and 562,707 are referred to.
Patent GB-950222-A (GB)
Title: Improvements in or relating to the polymerization of 1,3-butadiene
IPC: C08F136/06
Filed: 1962-02-21
Abstract: 1,3-butadiene is polymerized to obtain a polymer having a high percentage of cis 1,4-addition using a catalyst comprising an organo-metallic compound R2M where R is an alkyl, cycloalkyl, aryl, alkaryl or an aralkyl radical and M is magnesium, beryllium or cadmium and a second component which is titanium tetraiodide, but when M is beryllium or magnesium the second component is alternatively titanium tetrachloride and titanium tetraiodide or a compound TiXm and iodine, where X is chlorine or bromine and "m" is 2, 3 or 4.  Generally the mol ratio of the organometallic compound to total titanium is in the range 0.75:1 to 10:1. When a mixture of titanium tetrachloride and titanium tetraiodide is used the mol ratio of the tetrachloride to the tetraiodide is preferably in the range 0.5:1 to 5:1 and in systems which contain iodine, the mol ratio of the titanium halide to iodine is preferably in the range 0.5:1 to 1.25:1.  Generally 1 to 20 gram millimols of organometallic compound are used for each 100 grams of 1,3-butadiene to be polymerized.  The polymerization is generally carried out in the presence of a diluent, preferably an aromatic hydrocarbon.  The polymerization may be conducted in the solid phase. On completion of the polymerization, the polymer may be recovered by steam stripping the diluent from the polymer, or the catalyst may be inactivated with an alcohol and the polymer then separated. An antioxidant e.g. phenyl-beta-naphthylamine, may be added to the polymer solution prior to polymer recovery. The rubbery polymers obtained may be compounded with vulcanization accelerators, vulcanizing agents, reinforcing agents, fillers or with other polymeric materials e.g. natural rubber, polyethylene and cis 1,4-polyisoprene.  Long lists of catalyst components are given but those employed in the examples are (1) diphenyl magnesium and titanium tetraiodide; (2) diphenyl magnesium, titanium tetrachloride and tetraiodide; (3) diphenyl magnesium, titanium tetrachloride and iodine; (4) diethyl cadmium and titanium tetraiodide and (5) dibutyl beryllium and titanium tetraiodide. Specification 950,221 is referred to.
Patent GB-1059994-A (GB)
Title: Preparation of 3-amino-2-pyrazolin-5-one derivatives
IPC: C07D231/52
Filed: 1964-02-18
Abstract: 1 - Substituted - 3 - arylamino - 2 - pyrazolin-5-ones of the general formula <FORM:1059994/C2/1> wherein R1 is a substituted or unsubstituted aryl group and R2 is a substituted or unsubstituted aryl group or a substituted or unsubstituted C1 to C18 alkyl group, are prepared by reacting in the presence of an acid acceptor a compound of the Formula II (a) R1N = C(X)-CH2-CO-OR1 or of the Formula II (b) R1NH-C(X) = CH-CO-OR1, wherein R1 is a C1 to C4 alkyl group, or a mixture of compounds II (a) and II (b), with a compound of the formula R2NH-NH2 and in the case where R2 is an aryl group having substituents in the 2- and 6-positions cyclizing the alkyl-3-arylamino-3-arylhydrazino propionate so formed in the presence of a base or a weak acid.  The alkyl propionate intermediate obtained when employing a 2,6-disubstituted arylhydrazine may be isolated prior to cyclization.
Patent GB-1133927-A (GB)
Title: Improved double purpose chair
IPC: A63B69/06
Filed: 1967-02-13
Abstract: 1,133,927. Chairs convertible into sculling machines. V. R. HART. 9 Nov., 1967 [13 Feb., 1967], No. 6753/67. Heading A4H. [Also in Division A6] A chair convertible into a sculling machine comprises a main frame 1 of U-form, a first subsidiary frame 4 pivoted at its upper ends by pins 6 to the main frame 1, a second subsidiary frame 12 pivoted at its lower ends by pins 16 to the main frame 1 and sculls 18 on outriggers 17 pivoted to the main frame 1. The rear part of the seat 8 is hooked on to a rod 7 bridging the upper ends of the first subsidiary frame 4, and the forward edge of the seat has a slotted bracket 10 which engages over a fixed pin 11 on the second subsidiary frame 12 and an apertured bracket 13 which engages a spring loaded pin 14 on the second subsidiary frame. When used as a sculling machine the three frames are collapsed into a flat state and the seat 8 is placed so that grooved wheels 25 thereon roll on the limbs of the main frame. Each outrigger 17 comprises a tube which slides in a sleeve 19 and is detachably retained therein by a spring loaded pin. The sleeve 19 has a hollow boss 20 rotatably mounted on the main frame 1 and is held in either of two positions by a pin (23) on the frame 1 (engaging notches in the boss. A spring loaded pin (24) urges the boss axially into engagement with the pin 23. Knuckle joints 21 between the sculls 18 and the outriggers 17 include adjustable springs 28 for varying the resistance to sculling.
Patent GB-694462-A (GB)
Title: Esters of 20:21-ketols of the pregnane series with acids of the type of trimethyl acetic acid
Filed: 1951-03-21
Abstract: The invention comprises a 21-ester of a 20 : 21-ketol of the pregnane series with an acid of the formula <FORM:0694462/IV (b)/1> wherein R1, R2 and R3 stands for a lower aliphatic hydrocarbon group with at the most three carbon atoms. Such compounds may be prepared by (1) reacting halides, anhydrides or esters of the acids with the corresponding 20 : 21-ketols of the pregnane series in the presence or absence of condensing agents; (2) reacting the acids or their salts with reactive esters of 20 : 21-ketols; (3) from the 21-diazo ketones of the pregnane series and the corresponding acids.  The preparation of D 4-3 : 20-diketo - 21 - trimethylacetoxypregnene, -17a -hydroxy - 21 - trimethylacetoxypregnene, - 21-tripropylacetoxy - pregnene and - 21 - a  : a -dimethylbutoxy - pregnene, D 5 - 20 - keto - 3b -hydroxy - 21 - trimethyl - acetoxy - pregnene and D 4 - 3 : 11 : 20 - triketo - 17a  - hydroxy-21 - trimethylacetoxy - pregnene is described.
Patent GB-1478807-A (GB)
Title: Filter device
IPC: B01D46/52
Filed: 1975-02-18
Abstract: 1478807 Gas filter in a paper housing LECTROSTATIC AB 18 Feb 1975 [1 March 1974] 6858/75 Heading BIT A filter device comprising a closed boxshaped housing (1) of a paper material having inlet means (2) and outlet means (3) for air or gas to be filtered and at least one filter element (10) arranged in the flow path of the air or gas, the filter element comprising a filter web in an air and gas permeable, particle-collecting material, the web being folded to form a plurality of mutually adjacent web portions (e.g. 16 and 17 in Fig. 3), pairs of the web portions being spaced apart to form pockets by means of spacer elements (21) between each pair of web portions and which extend substantially parallel to one another and which spacer elements pairwise clamp an intermediate web portion therebetween to hold it in position and permit the gas or air to pass through the pockets, the opening or bottom of alternate pockets being faced towards the flow of gas or air, wherein the spacer element in each pocket has edge portions (31 and 32) which extend along respective edges of the pocket and along two mutually opposite wall surfaces of the housing to which they are secured. The entire filter is preferably made of paper.
Patent GB-558517-A (GB)
Title: Improvements in or relating to apparatus for conveying and delivering articles
IPC: B65H31/24
Filed: 1941-08-12
Abstract: 558,517. Endless conveyers. STEVENS, A. H. (Miller Printing Machinery Co.). Aug. 12, 1941, No. 6872/43. Divided out of 558,489. [Class 78 (i)] [Also in Group XVI] In an apparatus for delivering sheets and the like from printing or other machines in which the sheets can be delivered to one automatically lowered board 104 by a sheet conveyer 102, or can be passed on to a further board by means of a conveyer 103, the conveyer 103 is held out of action by a finger 105 while sheets are delivered to the board 104. The construction of the device is similar to that described in Specification 558,489. The finger is held erect by co-operating detents 108, 109, but when the board 104 is full of sheets the detent is tripped by a link 112 fitted with a collar 114 which is depressed when the board 104 reaches a given low position. The conveyer is then moved positively into operative position by engagement of a notch 118 in a reciprocating link 115 with a pin 119 on the conveyer. The link pulls the conveyer down and latching levers 31 hold it in depressed position. The delivery to board 104 then ceases and the conveyer 103 delivers to another board. The apparatus may comprise more than two conveyers and pile boards.
Patent GB-523649-A (GB)
Title: Improvements in the treatment of liquid distillable carbonaceous materials containing solid matter in dispersion with hydrogen
IPC: C10G1/06
Filed: 1938-10-18
Abstract: 523,649. Destructive hydrogenation. POTTS, H. E. (Naamlooze Vennootschap Internationale Hydrogeneeringsoctrooien Maatschappij (International Hydrogenation Patents Co.) Oct. 18, 1938, No. 6889/40. Divided out of 521,391. [Class 32] [Also in Group XXVIII] In the destructive hvdrogenation of liquid distillable carbonaceous materials containing solid matter in dispersion a preheater is employed having return bends furnished with interchangeable tube-like pieces constructed of or lined with alloys, or coated with high melting enamels, having a Brinell hardness of above 400. Suitable materials include cast alloys having a high content of chromium and a low content of silicon, molybdenum or cobalt ; examples are given. As shown a cast-piece A in the form of a hollowed out rod is introduced through the side of the member B and secured by a closure C. The invention may be applied to the treatment of initial materials containing chlorine or with catalysts or additions having a corrosive action, e.g. ammonium chloride or hydrogen chloride. Coal pastes containing more than 45, e.g. 50-65 per cent. of coal may be treated ; preferably two pastes are formed, one containing less than 45 per cent. and the other more than 45 per cent. of coal, the former being preheated by means of a heat exchanger and the latter according to the invention and the two preheated pastes admixed and passed into the reaction vessel, if desired after further preheating. Specifications 195,568, 272,588, 326,406, [all in Class 99 (i)], and U.S.A Specifications 1,865,016, 1,987,300 and 2,046,156 are referred to.
Patent GB-592713-A (GB)
Title: Improvements in blower drives for internal combustion engines
IPC: F02B33/00
Filed: 1945-03-20
Abstract: 592,713. Reversing; pumps. HARPER, W. A., and REBBECK, SIR F. E. March 20, 1945, No. 6962. [Classes 7 (ii) and 7 (v)] A blower drive for a reversible engine including a slipping clutch 17, which allows the blower to continue to revolve under its own momentum when stopping the engine, and means to cause it to be driven in the same direction when the engine is reversed. The blower 2 is driven from the engine crankshaft 4 through chain gearing 5, 7, a shaft 6, and a speed-increasing gear and clutches in a casing 3. Parallel shafts 10, 11, Fig. 3, which are driven in the same direction by a gear wheel 9, drive the shaft 16 connected to the blower through alternatively engaged hydraulic couplings 14, 15. The supply of fluid to the couplings is controlled by the engine reversing lever so that when the direction of rotation of the shaft 6 is reversed the drive is through coupling 15 and gears 19, 18 causing the direction of rotation of the shaft 16 to remain unchanged. The supply of fluid to the further hydraulic coupling 17 is controlled by the engine "stop" lever through a valve which is reciprocated so that the supply to the coupling 17 is cut off and both couplings are drained, when the lever is put into the " stop " position, which is the first action to be taken when reversing the engine. The blower then continues to rotate under its own momentum. A chamber, or length of piping, between the valve and the coupling ensures sufficient lag in the engagement of the couplings in succession.